All India Trade Test – 2024 Wireman – Second Year – Set 1

All India Trade Test – 2024

Wireman – Second Year – Set 1

Total Questions: 75 | Maximum Marks: 150 | Marks per Question: 2

Negative Marking: No

Part 1: Trade Theory (Questions 1–38)

1. At what supply voltage does a fire alarm circuit operate?

1. 240 V AC
2. 220 V DC
3. 110 V DC
4. 24 V DC

2. Which component is used to sense heat in a fire alarm circuit?

1. Varistor
2. Light Dependent Resistor (LDR)
3. Sensistor
4. Thermistor

3. Which instrument is represented by the BIS symbol showing 3 Wh?

1. Wattmeter
2. Single-phase energy meter
3. Three-phase energy meter
4. Power factor meter

4. What is the name of the part marked 'X' in the figure?

1. Energy meter
2. IC cut-out
3. Main switch
4. Distribution board

Refer to page 2 of the original PDF for the figure.

5. What is the unit of insulation resistance?

1. Milliohm
2. Ohm
3. Kilo-ohm
4. Megaohm

6. Which rated-voltage megger is used to measure the insulation resistance of a 3-phase, 415 V induction motor?

1. 250 V
2. 500 V
3. 1000 V
4. 2500 V

7. Which instrument is used to measure insulation resistance?

1. Shunt-type ohmmeter
2. Series-type ohmmeter
3. Megger
4. Multimeter

8. What is the main cause of leakage current in a wiring installation?

1. Deterioration of insulation
2. Low earth resistance
3. Incorrect size of the earth wire
4. High earth reactance

9. What is the minimum clearance between busbars of different phases in medium-voltage applications?

1. 25 mm
2. 32 mm
3. 36 mm
4. 40 mm

10. According to IE rules, what is the maximum permissible voltage drop at the point where the supply begins at the consumer's end for high and extra-high voltage?

1. 12.50%
2. 8%
3. 5%
4. 3%

11. According to IE rules, how should a cable be connected to a distribution board?

1. By crimping lugs without cutting any strands of the cable
2. By crimping lugs after cutting some strands
3. By inserting the strands directly into the terminals
4. By twisting the strands and inserting them into the terminals

12. According to IE rules, what is used to protect conductors passing through walls in commercial wiring?

1. Wooden batten
2. Rigid metal conduit
3. Flexible metal conduit
4. Flexible non-metallic conduit

13. What is the full form of LAN?

1. Load Area Network
2. Local Area Network
3. Local Aviation Network
4. Local Active Network

14. What is the inter-processor distance of a LAN?

1. More than 1000 km
2. 10 km to 1000 km
3. 1 km to 10 km
4. 0 to 1 km

15. Which medium is used for data transmission in a LAN?

1. PVC cable
2. Armoured cable
3. Belted cable
4. Coaxial cable

16. What is a characteristic of a LAN?

1. It consists of only one computer
2. A group of two or more computers in the same building
3. A group of computers in different buildings
4. A group of computers in different areas

17. What is the full form of UPS?

1. Uninterrupted Power System
2. Uninterrupted Power Supply
3. Uninterrupted Power Solution
4. Uninterrupted Power Section

18. In the block diagram of an offline UPS, which component is marked 'X'?

1. Reset switch
2. Changeover switch
3. Control panel
4. Battery charger

Refer to page 6 of the original PDF for the figure.

19. What is the relationship between the backup time and capacity of a UPS battery?

1. Backup time increases as battery capacity increases
2. Backup time decreases as battery capacity increases
3. Backup time increases as battery capacity decreases
4. Battery capacity has no relationship with backup time

20. Which component is connected across the UPS transformer winding for protection against lightning?

1. Diode
2. Transistor
3. Triode
4. Polyester capacitor

21. Which of the following electrical or electronic devices requires a UPS?

1. Air conditioner
2. Microwave oven
3. Computer
4. Television

22. Why is the battery placed near the UPS in UPS wiring?

1. To reduce cable length
2. For safety
3. To increase battery life
4. To reduce voltage drop

23. What arrangement is used to interconnect two or more UPS units in a commercial installation?

1. Manual connection
2. Using a changeover relay
3. Using a rotary switch
4. Using an ICDP switch

24. In which unit is the capacity of an inverter expressed?

1. Watt-hour
2. Ampere
3. Volt-ampere
4. Ampere-hour

25. Which wire is used to connect an inverter to a battery?

1. PVC 1.5 mm² copper wire
2. Special auto wire
3. PVC 1.5 mm² aluminium wire
4. PVC 2.5 mm² copper wire

26. How is the neutral provided in an inverter?

1. The neutral is shared by the inverter output and AC mains
2. A separate neutral wire is provided
3. Neutral is provided only for the output
4. Neutral is provided only for the AC mains

27. How many colour-coded wires are there in an RJ-45 cable?

1. 4
2. 6
3. 8
4. 10

28. Which pair of colours is used for two pairs in an Ethernet RJ-45 cable, as given in the options?

1. Blue and orange
2. Blue and brown
3. Orange and green
4. Brown and orange

29. What is a coaxial cable used for?

1. Transmission of electricity
2. Power wiring
3. Transmission of video signals
4. Domestic wiring

30. What is the first step in preparing an estimate of the materials required for any type of wiring installation?

1. Preparing the layout
2. Purchasing accessories for testing
3. Preparing testing instruments
4. Purchasing cables

31. According to IE rules, what is the recommended height of an energy meter from the floor in commercial wiring?

1. At least 1 metre
2. At least 1.5 metres
3. At least 2 metres
4. At least 2.5 metres

32. What should be considered before selecting conductors, protective devices and switchgear for commercial wiring?

1. Diversity factor
2. Type of wiring
3. Location of wiring
4. Climatic conditions

33. What colour is used for a fire alarm call point?

1. Green
2. Yellow
3. Blue
4. Red

34. Which type of wiring system is used for a fire alarm system?

1. Metal conduit
2. PVC conduit
3. PVC casing and capping
4. Batten wiring

35. What is the name of the circuit shown in the figure?

1. Buzzer circuit
2. Calling bell circuit
3. Bell indicator circuit
4. Automatic fire alarm system

Refer to page 10 of the original PDF for the figure.

36. Where is a square-wave inverter used?

1. TV receiver
2. Computer
3. General lighting
4. DVD player

37. Which of the following is a type of smoke detector?

1. Fusion detector
2. Thermal expansion detector
3. Ionisation detector
4. Electrical sensing

38. What is the full form of CCTV?

1. Closed Circuit Television
2. Common Circuit Television
3. Common Computer Television
4. Closed Computer Television

Part 2: Workshop Calculation and Science (Questions 39–44)

39. What is the purpose of a lubricant?

1. To increase pressure
2. To increase friction
3. To reduce friction
4. To reduce pressure

40. What is used to reduce friction between machine parts?

1. Kerosene
2. Petrol
3. Water
4. Lubricant

41. What is the simplified result of 14x + 3y + 25x + 2y?

1. 17x + 27y
2. 16x + 28y
3. 39x + 5y
4. 44xy

42. What is the formula for a^m × aⁿ?

1. a^m+n
2. a^m−n
3. a^mn
4. a^m/n

43. Which is the correct formula for a^m / aⁿ?

1. a^m+n
2. a^m−n
3. a^{m × n}
4. (a^m)ⁿ

44. What is the expanded form of (a + b)²?

1. a² + 2ab + b²
2. a² − 2ab + b²
3. a² + 2ab − b²
4. −a² − 2ab + b²

Part 3: Engineering Drawing (Questions 45–50)

45. Which device is used to start and stop a motor?

1. Rotor
2. Starter
3. Stator
4. Slip ring

46. Which component controls the heat in an automatic iron?

1. Heating element
2. Pressure plate
3. Thermostatic switch
4. Asbestos sheet

47. Which static electrical machine is used to increase or decrease AC voltage?

1. Transformer
2. Generator
3. Alternator
4. Induction motor

48. Which material is used to make a line insulator?

1. Copper
2. Aluminium
3. Porcelain
4. Rubber

49. Identify the waveform shown in the figure.

1. Square wave
2. Sine wave
3. Triangular wave
4. Sawtooth wave

Refer to page 14 of the original PDF for the figure.

50. What is the name of the symbol shown in the figure?

1. Microphone
2. Dynamic microphone
3. Condenser microphone
4. Loudspeaker

Refer to page 14 of the original PDF for the figure.

Part 4: Employability Skills (Questions 51–75)

51. Which skill is most essential for getting a job?

1. Interview skills
2. Translation skills
3. Entrepreneurial skills
4. Learning more languages

52. What should you prepare first when applying for a job?

1. Book a ticket to the interview venue
2. Save money for expenses
3. Prepare a resume
4. Prepare for the interview

53. Where is campus recruitment conducted?

1. In the state capital
2. At the ITI
3. At the company
4. Online

54. Which of the following details is relatively less important in a resume?

1. Qualifications
2. Experience
3. Completed skills training
4. Expected salary

55. What is the ability to connect well with people called?

1. Interpersonal skills
2. Leadership skills
3. Time management
4. Creativity

56. What is the ability to wait and remain calm called?

1. Creativity
2. Problem-solving
3. Patience
4. Interpersonal skills

57. What does punctuality mean?

1. Work done by a punching machine
2. Being informal
3. Politeness
4. Arriving on time

58. What should you say when borrowing a pen from your classmate?

1. Give me your pen.
2. Could you please lend me a pen?
3. I need a pen.
4. I am taking your pen.

59. Magnificent, sharp, lengthy and bright are examples of what?

1. Describing words
2. Action words
3. Nouns
4. Pronouns

60. Table, wire, socket, cable, hammer and nail are what type of words?

1. Describing words
2. Pronouns
3. Naming words
4. Action words

61. Comma, full stop and question mark are examples of what?

1. Design
2. Next paragraph
3. Formal communication
4. Punctuation marks

62. What do you say when you begin a discussion on a topic?

1. Let us begin.
2. Let me say.
3. Let us discuss.
4. Let us finish.

63. How should you behave when addressing your boss?

1. Rudely
2. Informally
3. Formally
4. In an overly expressive manner

64. “You are requested to complete the assigned work by Monday.” This is an example of what?

1. Informal communication
2. A request
3. An order
4. Formal communication

65. Gestures, facial expressions and eye contact are examples of what?

1. Verbal communication
2. Non-verbal communication
3. Spoken communication
4. Written communication

66. “Hi”, “How are you?” and “What’s up?” are examples of what?

1. Formal communication
2. Informal communication
3. Polite communication
4. Rude communication

67. Complete the sentence with the appropriate describing word: “The roads in my town are in ______ condition.”

1. Good
2. Expensive
3. Beautiful
4. Safe

68. Complete the sentence with the appropriate describing word: “There is a ______ garden with lovely flowers.”

1. Good
2. Spacious
3. Big
4. Beautiful

69. Complete the sentence with the appropriate describing word: “There is a ______ playground near our house.”

1. Spacious
2. Big
3. Beautiful
4. Good

70. Complete the sentence with the appropriate describing word: “There are ______ apartments in my neighbourhood.”

1. Expensive
2. Beautiful
3. Good
4. Spacious

71. Fill in the blanks with the appropriate words: “The Principal called Manoj. The Principal asked ______ to show ______ hall ticket for the CTS Examination.”

1. him, his
2. him, her
3. her, his
4. her, him

72. Fill in the blanks with the appropriate words: “Tell us about a difficult situation you have ______ and how you ______ to come out of it.”

1. face, manage
2. managed, face
3. faced, manage
4. faced, managed

73. Complete the sentence with the appropriate describing word: “There is a factory in the area. The air is ______.”

1. Polluted
2. Boring
3. Uneven
4. Noisy

74. Complete the sentence with the appropriate describing word: “There is water scarcity in the locality. The area is ______.”

1. Uneven
2. Noisy
3. Dry
4. Boring

75. Complete the sentence with the appropriate describing word: “Transportation to some rural areas is difficult because the roads are ______.”

1. Dry
2. Polluted
3. Boring
4. Uneven

Answer Key

Source: Wireman – Second Year – Set 1, All India Trade Test 2024. Questions and options are on pages 1–20 of the original PDF, and the answer key is on page 21. Refer to the relevant original PDF pages for figure-based questions.